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Grok 4.20 vs Llama 3.3 70B Instruct

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Grok 4.20 and Llama 3.3 70B Instruct.

xAI

Grok 4.20

Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

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Meta

Llama 3.3 70B Instruct

Meta's state-of-the-art open weights model, providing enterprise-grade reasoning and logic. Exceptionally powerful for self-hosted customer support, text generation, and tooling workflows.

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Technical Specifications

SpecificationGrok 4.20Llama 3.3 70B Instruct
ProviderxAIMeta
Context Window2,000,000 tokens131,072 tokens
Agent SuitabilityN/A83/100
Time to First Token (TTFT)N/A280 ms
Deployment Modelmanaged apiself hostable
Production Stabilitybetastable
API AvailableYesYes
Released Date2026-03-312024-12-06

API Pricing Comparison

Input Price per Million Tokens

Grok 4.20

$1.25

Llama 3.3 70B Instruct

$0.10

Output Price per Million Tokens

Grok 4.20

$2.50

Llama 3.3 70B Instruct

$0.32

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
N/Avs8620.0%
Grok 4.20
Llama 3.3 70B Instruct
HumanEvalPython coding & logic synthesis
N/Avs8800.0%
Grok 4.20
Llama 3.3 70B Instruct
MATHComplex mathematical problem solving
N/Avs7500.0%
Grok 4.20
Llama 3.3 70B Instruct
GPQAGraduate-level expert reasoning
N/Avs5200.0%
Grok 4.20
Llama 3.3 70B Instruct
HellaSwagCommonsense reasoning and inference
N/Avs8850.0%
Grok 4.20
Llama 3.3 70B Instruct
MT-BenchMulti-turn conversation flow quality
N/Avs880.0%
Grok 4.20
Llama 3.3 70B Instruct

Grok 4.20 Quirks & Gotchas

No developer gotchas reported.

Llama 3.3 70B Instruct Quirks & Gotchas

  • โ–ธStable, well-documented self-hosted option with strong community support
  • โ–ธOutperformed by Llama 4 Maverick for agentic tool-calling workflows